cmake:相对链接目录

我正在尝试使用 cmake 构建我的项目，但在指定带有要链接的库的目录时遇到问题。

我的项目具有以下目录层次结构:

文件夹/my_libs/libA/include
文件夹/my_libs/libA/src
文件夹/my_libs/libA/projects
文件夹/my_libs/libA/unit_tests

文件夹/other_libs/devlib/include
文件夹/other_libs/devlib/lib

3RD_PARTY_LIB/gtest-1.5.0/include
3RD_PARTY_LIB/gtest-1.5.0/lib
3RD_PARTY_LIB/pcre-8.02/include
3RD_PARTY_LIB/pcre-8.02/lib
3RD_PARTY_LIB 是环境变量，其中包含我使用的某些 3rd 方库的路径。

问题出在 unit_tests/CMakeLists.txt - 当我使用 include_directories 指定包含的相对路径时，它们被正确处理，但使用 link_directories 指定的相对路径处理错误。

这是我的makefile:

==================================
# 文件夹/my_libs/libA/CMakeLists.txt

cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
project("libA")
add_subdirectory(src)
add_subdirectory(unit_tests)

==================================
# 文件夹/my_libs/libA/src/CMakeLists.txt

cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
project("libA")

set(HDR_LIST ../include/AuxRoutines.h
             ...
             ../include/utility.h)

set(SRC_LIST ModuleImpl.cpp
             ..
             Version.cpp)

# add include dirs
include_directories("../include")
include_directories("../../../other_libs/devlib/include")

# disable some warnings
add_compile_options("/wd 4996")
...

# this command creates a new library from specified sources
add_library(libA STATIC ${SRC_LIST} ${HDR_LIST} )

==================================
# 文件夹/my_libs/libA/unit_tests/CMakeLists.txt

cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
project("sys_utils_tests")

set(SRC_LIST AuxiliaryRoutinesTests.cpp
             ...
             UnitTests.h)

# add include dir
include_directories("../include")
include_directories("../../../other_libs/devlib/include")
include_directories($ENV{3RD_PARTY_LIB}/gtest-1.5.0/include)
include_directories($ENV{3RD_PARTY_LIB}/pcre-8.02/include)

# where to look for libs
link_directories(../../../other_libs/devlib/lib/)
link_directories($ENV{3RD_PARTY_LIB}/gtest-1.5.0/lib/)

# disable some warnings
add_compile_options("/wd 4996")
...

# make an executable from specified sources
add_executable(libATest ${SRC_LIST})

# libs to link with
target_link_libraries(libATest libA)
target_link_libraries(libATest gtestd.lib)
target_link_libraries(libATest devlibd.lib)

最佳答案

问题解决了。事实证明，通过 link_directories() 处理相对路径是由 CMP0015 策略定义的。

cmake_policy(SET CMP0015 NEW)

搞定了把戏。

看
http://www.cmake.org/cmake/help/v3.0/policy/CMP0015.html

关于cmake:相对链接目录，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/25324357/

liba

cmake:相对链接目录